NEW EHU BOLLARDS.

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Sam Vimes

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Sep 7, 2020
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You can all come to your own conclusions about the practice.

However on a personal note at home I use a 50m extension block in the garden. For whatever reason I always plug it into a live socket and switch it on before unrolling it to where ever I need it. Also the shorter extension blocks - the typical 4 way blocks - I always plug into a live socket first. Then again I'm aware of the implications.
 
Jul 29, 2022
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I don't agree it's dangerous, clearly the new bollards add further protection, but it shouldn't detract the caravaner from maintaining good practice in how EHU leads are used and maintained.
An analogy would be like driving with less care and attention just because an airbag is fitted!
We also have to be realistic about how sites are updated, like just about all infrastructure, upgrades are phased in for reasons of practicality, minimal user disruption , affordability etc.
I'm a gold card sparks that works with intake and distribution upto 11kv. If a 230v live cable is left on wet grass it is potentially dangerous.
Does anyone know of any documented incidents of someone getting an electric shock in the circumstances being discussed?
Occured on building sites which is why they can only use 110v. Survivable.
Anyone that says a live 230v cable laying on wet grass is no big deal needs to have more respect for electricity. Its a bit like at our target shooting club where I am a range officer, the amount of times I've heard "its alright mate the safety catch is on" which is when I go red in the face and start shouting naughty words😁
 
Jul 29, 2022
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50
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You can all come to your own conclusions about the practice.

However on a personal note at home I use a 50m extension block in the garden. For whatever reason I always plug it into a live socket and switch it on before unrolling it to where ever I need it. Also the shorter extension blocks - the typical 4 way blocks - I always plug into a live socket first. Then again I'm aware of the implications.
Sam, I need to get you on an ECS course pronto!! Lol!
 

Sam Vimes

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Sep 7, 2020
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No thanks. I've felt what volts are like, of varying amounts, and feel I can still recognise them when in contact. :)
 
May 15, 2023
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I'm a gold card sparks that works with intake and distribution upto 11kv. If a 230v live cable is left on wet grass it is potentially dangerous.

Occured on building sites which is why they can only use 110v. Survivable.
Anyone that says a live 230v cable laying on wet grass is no big deal needs to have more respect for electricity. Its a bit like at our target shooting club where I am a range officer, the amount of times I've heard "its alright mate the safety catch is on" which is when I go red in the face and start shouting naughty words😁
For clarity, my quote "I don't believe its dangerous" referred to how the site was operated, not the the poor practice of some individuals!!
 
Mar 26, 2016
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I'm a gold card sparks that works with intake and distribution upto 11kv. If a 230v live cable is left on wet grass it is potentially dangerous.

Occured on building sites which is why they can only use 110v. Survivable.
Anyone that says a live 230v cable laying on wet grass is no big deal needs to have more respect for electricity. Its a bit like at our target shooting club where I am a range officer, the amount of times I've heard "its alright mate the safety catch is on" which is when I go red in the face and start shouting naughty words😁
I asked about it happening to caravanners, not builders.
 
Nov 11, 2009
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When I had charge of a safety division, our assessment studies to produce safety cases for warships used the ALARP principle. This came out of the Piper Alpha disaster. ALARP means “As Low As Reasonably Practicable”. That meant reducing the risk until a cost benefit analysis showed no further gain in safety without disproportionate expenditure. The first approach was to see if the hazard could be removed all together. If it could “job done”, but in most cases life wasn’t that simple.

But wrt to EHU cables left connected and open ended it’s very simple don’t do it. Disconnect at the EHU and apart from a trip hazard the problem, irrespective of whether it is a real problem, goes away.
 
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May 15, 2023
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When I had charge of a safety division, our assessment studies to produce safety cases for warships used the ALARP principle. This came out of the Piper Alpha disaster. ALARP means “As Low As Reasonably Practicable”. That meant reducing the risk until a cost benefit analysis showed no further gain in safety without disproportionate expenditure. The first approach was to see if the hazard could be removed all together. If it could “job done”, but in most cases life wasn’t that simple.
1758868687341.png
Which is why if you use one of these adapters at home:
Spend another ÂŁ10 on an earth rod and cable, and ensure your van has a local earth, these things should come with a warning but they don't!

If you are interested in the technicalities, ask any electrician or watch this 10 min video.


View: https://www.youtube.com/watch?v=JRHyqouJPzE


Whilst the risk is low, a ÂŁ10 fix / insurance IMHO makes it worthwhile.
 
Jun 20, 2005
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Dave , this is scary serious stuff.
How can this situation be possible in 2025?

We had loads of rewiring and a new Consumer Unit two years ago. Nothing wrong with the old CU but the latest ICE regs said we needed a metal cased CU with more individual connections.
Does the break in the N wire have to be from the external socket via my adaptor and EHU cable? The thought of being electrocuted have the caravan at home is shocking(sic).

Is it being suggested that the mains adaptor is dangerous and shouldn’t be used??
Surely they wouldn’t be allowed to be sold if it was so dangerous?
One confused dog here🙉
 
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